The time master is responsible for distributing the time signal to the PCS 7 components to be
synchronized, for example, operator stations and automation systems.
Synchronization options
The following table below shows the PCS 7 components for which time synchronization is
possible:
Station Synchronization
Operator station and
maintenance station
PCS 7 internal synchronization
The time master can be on one of the following networks:
● On the terminal bus
● On the plant bus
BATCH station In the case of installation without OS, no synchronization via PCS 7.
You have the following options for synchronization, for example:
● Synchronization via DCF77-client
● Synchronization via the domain controller as the time master on the
terminal bus
Route Control station
SIMATIC PCS 7 BOX PCS 7 internal synchronization is possible. The method used depends
on the product variant (Page 35) (operator station or AS)
AS
● Synchronization via the plant bus
Domain
● Synchronization via the domain controller as the time master on the
terminal bus
Time master
● The time master is integrated in a PC or connected to the Ethernet
network as a bus component.
● The time master can be any device which can transmit a time signal
via the Ethernet networAdditional information (a PC, for example).
Setting the time format in a system
Ensure you set the same time format (12 hour format / 24 hour format) for all programs and
devices.
Additional information
You can find detailed information on time synchronization in the
Process Control System PCS
7; Time Synchronization
manual.
PC components of a PCS 7 system
3.9 Connecting PC stations
PCS 7 - PC Configuration (V8.2)
46 Installation Manual, 03/2016, A5E36200050-AB
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